2023 Hyundai Elantra Hybrid

I am reporting a serious safety issue involving my 2023 Hyundai Elantra. The vehicle experienced a sudden mechanical and/or electrical malfunction that made it unsafe to operate. While driving, the vehicle began displaying warning indicators and experienced abnormal performance consistent with a system malfunction. Hybrid system failed, radar malfunction, blind spot malfunction. I couldn't control the car , while I was exiting the highway XXX and took a excit on [XXX] where the incident was happend. Stering wheel got licked out , braking system got soft , failure notification on my dashboard. I couldn't do anything, stuck on that car , it was trying to go left , n trying to flip over. I had used my full forced to pull it back on the road. Had to find parking spot , let it coast drive and I had to press on the engine start button to stop the car. Due to malfunction caused me the collusion incident, my driver side got scratched on my rims and the tiers The issue raised concerns about potential loss of power and vehicle reliability during operation. This created a significant safety risk, as the failure could occur unexpectedly while driving in traffic, increasing the risk of an accident. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

This vehicle I am driving has going on 24,000 miles only and over the course of the 23,000 miles it started making me do a 12V reset which very scary when you in traffic, have to pull to the side of the road, the car blinks "Check Hybrid System" with the little what looks like a tire pressure monitor system but it is a exclamation point and says "HEV" inside. My vehicle will die while pulling off to the side of the road, I have to park it, and 12V reset it, and start the car up again, in order to get to where I was going. I can not sit in one place. In fact this battery reset happened two times last night on June 18th at a drive thru while waiting for dinner and once while waiting on a pharmacy drive thru line about two weeks ago. All this is idling. I never had a lockout issue with my car where I had to get in with my key and 12V reset it. It's only when the car is on and idling. I'm well aware of Hyundai hybrids having 2 batteries, so it is definitely not the battery controlling my acc, it's controlling my main controls. I have done so much research on my vehicle and just know this will be such a hassle to get replaced although I paid very good money for my vehicle, and the batteries are under warranty. I will have to roll the dead battery into Hyundai's lot so they do something, but even then they think 12V resetting will be a normal thing, not when I'm travelling down the freeway during rush hour. A 12V reset should be there for utmost emergencies, not to be used on a daily basis multiple times a day. Hyundai needs to take ownership and do something about it. Is it an alternator to the battery or is it their lithium ion batteries they use, is it a wire that sucks, they need to do something and get all the hybrids fix because it's not just Elantras, many Tucsons, sonatas, etc. Have the same issue all across the years I have seen to 2020. Very faulty.

The issue involves the hybrid electric powertrain or electrical control system in my 2023 Hyundai Elantra Limited Hybrid. The vehicle has shut off multiple times while driving, with complete loss of power and propulsion. This poses a serious safety risk, as it happens without warning in the middle of the road. Restarting the car requires shifting into Park and trying multiple times to turn it off, but the vacuole turns back on the first try. I have experienced this issue several times, including twice during a 300-mile highway trip. After each shutdown, the dashboard displays multiple warning lights, including the Check Engine Light, Battery Light, Oil Pressure Light, and Hybrid System Warning (orange car icon). I took a photo immediately after the most recent failure to document these warnings. The vehicle has been inspected three times by two different Hyundai dealerships. Both confirmed the vehicle is under warranty but have not repaired or diagnosed the issue, citing that they cannot replicate it. They have driven it ~200 miles without success. However, they have not pulled ECU data or freeze-frame codes, even though warning lights were active at the time of failure. There are no symptoms or warning messages before the failure — the vehicle shuts off suddenly. The car is available for inspection, and I am in the process of opening a formal case with Hyundai. This is a significant and recurring safety hazard that must be addressed. This issue has an occurred a various speeds including during acceleration and braking. The picture attached is the dashboard after the I indent has occurred and have shifted to park after stopping to try and restart the car to get out of the middle of the road.

For the second time in two years, my horn suddenly stopped working. About 6 months after purchasing the car, the horn began to sound high pitched. Then about three weeks later the horn stopped working, requiring the replacement of the horn. A month later, the horn sounded high pitched again. Hyundai advised me the horn is a "two-horn system" in which a high pitch and low pitch horn produce the horn noise. The low pitch keeps failing. About 4 months after the horn was only sounding a high pitched sound, the horn stopped when I hit the horn to avoid an oncoming driver.

The car has been making clicking noise when braking or acceleration for about a year. I had all recalls software updated. I have brought it in multiple times. First saying a wheel bearing needed replacement, then a lose bolt. It helped for a while and then the clicking started again. Then the system failure occured recently and all the lights came on. The dealer currently cannot figure out what the issue is. The ABS light is on and the brakes don't seem to be working properly. I can't safely drive the vehicle and have no car to drive now. I have had the car a little over two years so lemon law most likely does not apply to this situation.

I experienced an issue where I was driving the vehicle, and then a "hybrid system fault" message appeared on the driver information display followed by the complete loss of power. This made me have to pull over to the side of the road with no ability to accelerate out of the way of traffic to come to a stop. Once I was stopped I tuned off the vehicle and tried to turn it back on, but the vehicle would not respond so I attempted pressing the 12 volt battery reset button to the left of the steering wheel to see if this would allow me to turn the vehicle on and the car came back to life with no warning lights or messages and drove normally. This happened three more times over the course of ~1.5 hrs on my way home on the highway. I understand that things happen, I just wish there was more warning before all power was cut and the vehicle went into limp mode as this left me in a dangerous situation. The vehicle has been dropped off at the dealer and is awaiting a new hybrid battery replacement under warranty.